1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.menu;
import android.content.Context;
/**
* A base class of the item which will be displayed in the main menu.
* It contains the data such as title to represent a row.
* This is an abstract class and the sub-class could have it's own data for
* the row.
*/
public abstract class MenuRow {
private final Context mContext;
private final String mTitle;
private final int mHeight;
private final Menu mMenu;
// TODO: Check if the heightResId is really necessary.
public MenuRow(Context context, Menu menu, int titleResId, int heightResId) {
this(context, menu, context.getString(titleResId), heightResId);
}
public MenuRow(Context context, Menu menu, String title, int heightResId) {
mContext = context;
mTitle = title;
mMenu = menu;
mHeight = context.getResources().getDimensionPixelSize(heightResId);
}
/**
* Returns the context.
*/
protected Context getContext() {
return mContext;
}
/**
* Returns the menu object.
*/
public Menu getMenu() {
return mMenu;
}
/**
* Returns the title of this row.
*/
public String getTitle() {
return mTitle;
}
/**
* Returns the height of this row.
*/
public int getHeight() {
return mHeight;
}
/**
* Updates the contents in this row.
* This method is called only by the menu when necessary.
*/
abstract public void update();
/**
* Indicates whether this row is shown in the menu.
*/
public boolean isVisible() {
return true;
}
/**
* Releases all the resources which need to be released.
* This method is called when the main menu is not available any more.
*/
public void release() {
}
/**
* Returns the ID of the layout resource for this row.
*/
abstract public int getLayoutResId();
/**
* Returns the ID of this row. This ID is used to select the row in the main menu.
*/
abstract public String getId();
/**
* This method is called when recent channels are changed.
*/
public void onRecentChannelsChanged() { }
/**
* This method is called when stream information is changed.
*/
public void onStreamInfoChanged() { }
/**
* Returns whether to hide the title when the row is selected.
*/
public boolean hideTitleWhenSelected() {
return false;
}
}
|
